政就是正的意思。如果你能带头走正道，谁还敢不行正道呢？

The beauty of instrumental variables is that they allow us to see the world in a new light.

The universe is full of mysteries, and that’s what keeps scientists motivated.

学习不以学识渊博为尊贵，贵在能够所学的为正道。

当一个人意识到自己被深深倾听时，他的眼睛会湿润。我想在某种程度上，他是喜极而泣。就好像他在说：“感谢上帝，有人听到了我。有人知道我的感受。”

The house,the stars,the desert,what givethem their beauty is something that is invisible.

体验越强烈，表达就越不清晰。